/*
 * Copyright 2024 LinQingYing. and contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * The use of this source code is governed by the Apache License 2.0,
 * which allows users to freely use, modify, and distribute the code,
 * provided they adhere to the terms of the license.
 *
 * The software is provided "as-is", and the authors are not responsible for
 * any damages or issues arising from its use.
 *
 */

package com.linqingying.cangjie.psi

import com.linqingying.cangjie.lexer.CjTokens
import com.intellij.lang.ASTNode
import com.intellij.psi.PsiElement


class CjRangeExpression(node: ASTNode) : CjBinaryExpression(node), CjReferenceExpression {
    override fun <R, D> accept(visitor: CjVisitor<R, D>, data: D?): R {
        return visitor.visitRangeExpression(this, data)
    }

    fun getInnerExpressions(): List<CjExpression> {

        return listOfNotNull(left, right,step)
    }

    val step: CjExpression?
        get() {
            val COLON = findChildByType<PsiElement>(CjTokens.COLON) ?: return null

//            获取COLON后面的元素
            return COLON.node.treeNext.psi as? CjExpression


        }

}
